Test methods for elastomers
The testing methods are divided into non-destructive and destructive testing methods. The non-destructive testing methods are primarily used as part of quality assurance in production as incoming production and acceptance tests.
Destructive testing methods are divided into mechanical, technological and chemical testing methods.
Abrasion test (DIN 53516)
The abrasion test determines the wear resistance of an elastomer that is subject to mechanical wear and tear and is carried out under real environmental conditions.
Compression test
Cylinders, tubes or right-angled prisms are usually used as test specimens in compression tests . The load between the pressure plates of the testing machine allows the material behavior under uniaxial compression to be assessed.
Compression set (DIN EN ISO1856)
The compression set of an elastomer refers to the residual deformation of an elastomer after deformation over a long period of time. The elastomer sample is first compressed to a certain percentage value. After relaxation, the percentage of deformation that has remained is measured.
Hardness test
Hardness testing is a widely used method. Hardness describes the resistance of a material to a harder, penetrating body. Hardness testing is therefore also carried out using a standardized indenter.
Rebound resilience (DIN 53512)
The test indicates how much kinetic energy an elastomer sample returns in percent after an impact test.
In this test method, the material is subjected to a single or multiple or continuous impact load. It is used to determine the impact strength and toughness as well as the impact hardness and thus determines the ability of elastomers to absorb shock or impact energy without breaking.
Torsion test
The torsion test is a method to determine the elastic behavior as well as the damping behavior of elastomers under small dynamic torsional loads.
Tear resistance (DIN 53507 and 53515)
The tear resistance or tear strength is an indicator of when a tear occurs after an elastomer has torn.
Time-oscillation test
The fatigue test is particularly important for plastics that are subjected to dynamic stress. In order to determine their behavior, they are exposed to oscillating loads over a certain period of time.
In this test method, standardized test specimens are stretched to the breaking point in a tensile testing machine at a constant feed rate.
Synonyms: Test method for elastomer properties
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